-
公开(公告)号：US20230059571A1
公开(公告)日：2023-02-23
申请号：US17405382
申请日：2021-08-18
Inventor： Renata Michaela ARSENAULT , Yan WANG , Luqman AZHARI
Abstract: A method of stabilizing Nickel-rich (NMC) cathode materials includes mixing a feedstock of transition metal sulfates, ammonia, and a basic solution to under bubbling of an inert gas to form a reaction solution, precipitating transition metal hydroxide particles from the reaction solution over a first period of time to precipitate the transition metal hydroxide particles therein to form a metal sulfate solution. The method further includes altering the pH of the metal sulfate solution, supplying a Mn-rich feedstock to the metal sulfate solution to form a Mn-rich solution, and precipitating Mn-rich hydroxide nanoparticles from the Mn-rich solution onto surfaces of the transition metal hydroxide particles over a second period of time to form a heterogeneous precursor.
-
公开(公告)号：US20230051612A1
公开(公告)日：2023-02-16
申请号：US17903594
申请日：2022-09-06
Applicant: Worcester Polytechnic Institute
Inventor： Himanshu Tanvar , Brajendra Mishra
IPC: C01F7/0653 , C01F7/066
Abstract: Bauxite residue recovery includes mixing a solution of hydrochloric acid (HCL) according to a predetermined concentration, and adding the HCL solution to a quantity of raw red mud recovered from industrial operations as waste material. The highly alkaline property of the bauxite residue, commonly known as red mud is at least partially neutralized from the HCL, and makes the resulting washed red mud more amenable to subsequent uses in various applications in fields such as construction, wastewater treatment, and metal recovery processes. The process recovers washed red mud from the red mud and HCL solution by filtering the raw red mud and HCL solution for generating a stream of leach liquor from the filtrate and the recovered washed red mud from the residue. The neutralized red mud is further treated to extract metals such as calcium, iron, aluminum, silicon, and titanium.
-
公开(公告)号：US20220362518A1
公开(公告)日：2022-11-17
申请号：US17741887
申请日：2022-05-11
Inventor： ANNE GU , CHRISTOPHER J. NYCZ , FARID TAVAKKOLMOGHADDAM
IPC: A61M25/01
Abstract: A steerable medical device, such as an endoscope of an endoscopic system, including a handle and an elongate shaft extending distally from the handle to a distal tip, a motor control assembly including a motor control housing configured to detachably interface with the handle, wherein the motor control assembly includes a first motor disposed within the motor control housing and a first gear assembly disposed within the motor control housing, and a first drive axle configured to engage the first gear assembly with a first deflection mechanism disposed within the handle, the first deflection mechanism being configured to deflect the distal tip in a first plane.
-
公开(公告)号：US20220296391A1
公开(公告)日：2022-09-22
申请号：US17696403
申请日：2022-03-16
Applicant: Worcester Polytechnic Institute
Inventor： Marko B. Popovic , Andrew Strauss , Mia Buccowich , Brian Fay
Abstract: A prosthetic device and approach for amputee remediation addresses partial or complete replacement of digits, and leverages the use of the remaining functional digits for directing operation of the prosthetic digits. A complete prosthetic digit replaces an amputated digit from actuated movement driven by an adjacent functional digit. A partial amputation leverages residual movement from the remaining digit portion as input to an actuator for amplifying the intent of the input through a motorized actuator to impart movement to the prosthetic digit. A wrist harness supports the apparatus of partial and complete prosthetic digits as a single appliance. A variable compression feature augments tension on the wrist harness to tightly engage the prosthetic appliance to the wrist to offset a gripping load on the prosthetic digits.
-
公开(公告)号：US20220241537A1
公开(公告)日：2022-08-04
申请号：US17592837
申请日：2022-02-04
Applicant: Worcester Polytechnic Institute
Inventor： Elizabeth A. Butler
Abstract: An oxygen catheter for veterinary patients includes an integrated catheter, cannula or vessel having integrated lumens for both oxygen and anesthetic such as lidocaine. The oxygen lumen extends into the trachea of the veterinary patient, often a canine, for respiratory aid. The anesthetic lumen is integrated into the same catheter as the oxygen, and terminates prior to the oxygen lumen for administering an anesthetic such as lidocaine around the soft palate to ease discomfort of the inserted catheter. The integration of the respiratory and anesthetic vessels allows a lidocaine drip to accompany the catheterized oxygen supply to medicate the tracheal, pharynx and soft palate regions from the inserted catheter along the path of the oxygen lumen to ease patient discomfort and anxiety for effective respiratory treatment while avoiding more invasive and expensive measures.
-
Patent Agency Ranking
公开(公告)号：US20220238246A1
公开(公告)日：2022-07-28
申请号：US17585056
申请日：2022-01-26
Applicant: Worcester Polytechnic Institute
Inventor： Yuxiang Liu , Chaoyang Ti , Qi Wen
IPC: G21K1/00
Abstract: A fiber optic based particle manipulation system employs one or more optical fibers for emanating a refracted optical manipulation signal directed at a target particle for fixing or manipulating the particle for examination, research and manufacturing. A target particle may be a living cell or inanimate sample or compound of matter. An alignment linkage controls optical fibers carrying the manipulation signal for focusing one or more manipulation signals on the target particle. Manipulated particles occupy a fluid medium of either liquid or gas, and are responsive to the manipulation signal based on both photon bombardment and temperature differential from photon contact. The temperature differential is based on surface properties of the target particle, as smooth particles tend to exhibit a greater thermal differential for stronger displacement forces driving or affecting the target particle.
-
公开(公告)号：US11286432B2
公开(公告)日：2022-03-29
申请号：US16583582
申请日：2019-09-26
Applicant: Worcester Polytechnic Institute
Inventor： Michael T. Timko , Geoffrey A. Tompsett , Alex R. Maag
Abstract: Catalyst composition and parameters for catalytic hydrothermal liquefaction of biomass to bio-oil fuels target municipal solid waste (MSW) rather than lignin rich plant waste typically sought for bio-oil production. An HTL (Hydrothermal Liquefaction) reactor generates bio-fuel from municipal solid waste (MSW), including receiving, in the HTL reactor, non-lignin based waste from a municipal processing stream, and adding a solvent for extracting sugars from green waste components of the municipal processing stream. The reactor extracts a liquid from the received waste, and converts water soluble products in the liquid into oil soluble products via C—C (carbon-to-carbon) coupling reactions. A catalyst added to the resulting aqueous stream recovers a beneficial oil product, and is optimized by tuning acid and base sites on the solid catalyst.
-
公开(公告)号：US20220085224A1
公开(公告)日：2022-03-17
申请号：US17474604
申请日：2021-09-14
Applicant: Drexel University , Worcester Polytechnic Institute , NanoGrass Solar, LLC
Inventor： Bahram Nabet , Pouya Dianat , Kiana Montazeri , Michel W Barsoum , Lyubov Titova
IPC: H01L31/0224 , H01L29/45 , G02B5/30
Abstract: Provided herein are MXene-containing photodetectors and related methods. Also provided are MXene-containing THz polarizers as well as MXene-containing MOSFETs, MESFETs, and HEMFETs.
-
公开(公告)号：US20220031420A1
公开(公告)日：2022-02-03
申请号：US17499600
申请日：2021-10-12
Applicant: Worcester Polytechnic Institute
Inventor： Gregory S. Fischer , Benjamin Piecuch , Dino Kasvikis , Perry A. Genova
Abstract: A surgical head clamp and robotics platform secures a head of a patient and positions an instrument relative to the head for a medical procedure. The head clamp and robotics platform comprises a planar C-shaped frame for at least partially encircling the head of a patient. An instrument arm is mounted is to a free distal end of one arm member of the frame. The instrument arm extends away from the arm member in a direction transverse to the plane of the frame. The instrument arm includes a base mounted to the arm member for movement along, three degrees of freedom relative to the frame, a proximal portion extending from and pivotally connected to the base, and a distal instrument holder extending from and pivotally connected to the proximal portion. The instrument arm functions to selectively position the instrument in an angular position relative to the head clamp.
-
100.发明授权公开(公告)号：US11207500B2
公开(公告)日：2021-12-28
申请号：US16107184
申请日：2018-08-21
Applicant: WORCESTER POLYTECHNIC INSTITUTE
Inventor： Gregory S. Fischer , Hao Su
Abstract: A needle steering system and apparatus provides active, semi-autonomous control of needle insertion paths while still enabling a clinician ultimate control over needle insertion. A method and system controls the needle path as the needle is inserted by precisely controlling the rotation of the needle as it continuously rotates during insertion. This enables underactuated 2 degree-of-freedom (DOF) control of the direction and the curvature of the needle from a single rotary actuator. Control of the rotary motion is therefore decoupled from the needle insertion. The rotary motion controls steering effort and direction, while the insertion controls needle depth or insertion speed. In one implementation, the proposed method does not require constant velocity insertion, interleaved insertion and rotation, or known insertion position or speed. The insertion may be provided by a robot or other automated method, may be a manual insertion, or may be a teleoperated insertion.
-
-
-
-
-
-
-
-
-
Search Results
351
records
(took 0.033 seconds)
